Sr. Staff Platform Engineer— OpenStack & Storage Infrastructure

Zscaler•San Jose, CA

6h•$154,000 - $220,000•Hybrid

About The Position

Zscaler accelerates digital transformation to ensure our customers can be more agile, efficient, resilient, and secure. As an AI-forward enterprise, we are constantly pushing the envelope, leveraging the world’s largest security data lake to power our cloud-native Zero Trust Exchange platform. This innovation protects our customers from cyberattacks and data loss by securely connecting users, devices, and applications in any location. Here, impact in your role matters more than title and trust is built on results. We say, impact over activity. We seek innovators who actively use AI to amplify their impact and who thrive in an environment where we leverage intelligent systems to stay ahead of evolving threats. We believe in transparency and value constructive, honest debate—we’re focused on getting to the best ideas, faster. We build high-performing teams that can make an impact quickly and with high quality. To do this, we are building a culture of execution centered on customer obsession, collaboration, ownership, and accountability. We value high-impact, high-accountability with a sense of urgency where you’re enabled to do your best work and embrace your potential. If you’re driven by purpose, thrive on solving complex challenges, and want to be part of the team that’s helping to secure the AI age, we invite you to bring your talents to Zscaler and help shape the future of cybersecurity. As a Sr. Staff Platform Engineer, you’ll lead the architecture and build-out of our OpenStack-based private cloud and storage infrastructure for data center environments. You’ll define the foundation our products and teams run on — owning reliability, scalability, and security at every layer from compute to block and object storage.

Requirements

Demonstrated curiosity and active exploration of AI tools, with a proven history of integrating new technologies to enhance daily workflows and augment problem-solving
8+ years in platform/infrastructure engineering with 5+ years operating OpenStack in production at multi-rack, multi-DC scale
Deep hands-on expertise in OpenStack core services — Nova, Neutron, Cinder, Swift, Glance, Keystone — including upgrade strategies, HA configurations, and operational troubleshooting
Strong storage engineering background — production experience with Ceph (RBD, RGW, CephFS), performance tuning, failure recovery, and capacity management
Proficiency in Python and Bash/Go for automation, tooling, and OpenStack operator customizations
Expertise in DC networking (OVN/OVS, SDN, BGP, and VLAN/VXLAN fabric design) and proven leadership of complex infrastructure initiatives with rigorous IaC/GitOps practices

Nice To Haves

Experience designing and operating sovereign or regulated DC environments with strict compliance and isolation requirements, or hybrid cloud architectures bridging private and public cloud environments
Familiarity with bare-metal provisioning (Ironic) and converged infrastructure management
Contributions to OpenStack or Ceph open source projects, or published technical talks and papers

Responsibilities

Own OpenStack architecture and lifecycle across data center environments — design, deploy, and operate Nova, Neutron, Cinder, Swift, and Glance at scale with a focus on high availability and operational resilience
Lead storage infrastructure design — architect and deliver enterprise-grade block, object, and file storage solutions using Ceph, and integrate them seamlessly within OpenStack and bare-metal environments
Build and automate DC platform capabilities using Terraform, Ansible, and GitOps workflows while defining standards for networking (SDN/OVN), RBAC, multi-tenancy, quotas, and resource isolation
Drive observability and capacity planning — instrument the full stack with Prometheus, Grafana, and centralized logging to manage SLOs, track storage utilization, and optimize cost at data center scale
Champion platform security and operational excellence by enforcing hardening across tiers, managing access controls, troubleshooting complex production issues, and mentoring engineers to continuously evolve the platform